Solve 1/8(left(146-149right)^2+left(147-149right)^2+left(151-149right)^2+left(149-149right)^2+{left(148-149right)}^{2}+{left(150-146right)}^2+{left(151-149right)}^2+{left(152-149right)}^2+{left(148-149right)}^2)

$$\frac{ 1 }{ 8 } ( { \left(146-149 \right) }^{ 2 } + { \left(147-149 \right) }^{ 2 } + { \left(151-149 \right) }^{ 2 } + { \left(149-149 \right) }^{ 2 } + { \left(148-149 \right) }^{ 2 } + { \left(150-146 \right) }^{ 2 } + { \left(151-149 \right) }^{ 2 } + { \left(152-149 \right) }^{ 2 } + { \left(148-149 \right) }^{ 2 } )$$

Evaluate

$$6$$

Solution Steps

Subtract 149 from 146 to get -3.

$$\frac{1}{8}\left(\left(-3\right)^{2}+\left(147-149\right)^{2}+\left(151-149\right)^{2}+\left(149-149\right)^{2}+\left(148-149\right)^{2}+\left(150-146\right)^{2}+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Calculate -3 to the power of 2 and get 9.

$$\frac{1}{8}\left(9+\left(147-149\right)^{2}+\left(151-149\right)^{2}+\left(149-149\right)^{2}+\left(148-149\right)^{2}+\left(150-146\right)^{2}+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Subtract 149 from 147 to get -2.

$$\frac{1}{8}\left(9+\left(-2\right)^{2}+\left(151-149\right)^{2}+\left(149-149\right)^{2}+\left(148-149\right)^{2}+\left(150-146\right)^{2}+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Calculate -2 to the power of 2 and get 4.

$$\frac{1}{8}\left(9+4+\left(151-149\right)^{2}+\left(149-149\right)^{2}+\left(148-149\right)^{2}+\left(150-146\right)^{2}+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Add 9 and 4 to get 13.

$$\frac{1}{8}\left(13+\left(151-149\right)^{2}+\left(149-149\right)^{2}+\left(148-149\right)^{2}+\left(150-146\right)^{2}+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Subtract 149 from 151 to get 2.

$$\frac{1}{8}\left(13+2^{2}+\left(149-149\right)^{2}+\left(148-149\right)^{2}+\left(150-146\right)^{2}+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Calculate 2 to the power of 2 and get 4.

$$\frac{1}{8}\left(13+4+\left(149-149\right)^{2}+\left(148-149\right)^{2}+\left(150-146\right)^{2}+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Add 13 and 4 to get 17.

$$\frac{1}{8}\left(17+\left(149-149\right)^{2}+\left(148-149\right)^{2}+\left(150-146\right)^{2}+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Subtract 149 from 149 to get 0.

$$\frac{1}{8}\left(17+0^{2}+\left(148-149\right)^{2}+\left(150-146\right)^{2}+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Calculate 0 to the power of 2 and get 0.

$$\frac{1}{8}\left(17+0+\left(148-149\right)^{2}+\left(150-146\right)^{2}+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Add 17 and 0 to get 17.

$$\frac{1}{8}\left(17+\left(148-149\right)^{2}+\left(150-146\right)^{2}+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Subtract 149 from 148 to get -1.

$$\frac{1}{8}\left(17+\left(-1\right)^{2}+\left(150-146\right)^{2}+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Calculate -1 to the power of 2 and get 1.

$$\frac{1}{8}\left(17+1+\left(150-146\right)^{2}+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Add 17 and 1 to get 18.

$$\frac{1}{8}\left(18+\left(150-146\right)^{2}+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Subtract 146 from 150 to get 4.

$$\frac{1}{8}\left(18+4^{2}+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Calculate 4 to the power of 2 and get 16.

$$\frac{1}{8}\left(18+16+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Add 18 and 16 to get 34.

$$\frac{1}{8}\left(34+\left(151-149\right)^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Subtract 149 from 151 to get 2.

$$\frac{1}{8}\left(34+2^{2}+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Calculate 2 to the power of 2 and get 4.

$$\frac{1}{8}\left(34+4+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Add 34 and 4 to get 38.

$$\frac{1}{8}\left(38+\left(152-149\right)^{2}+\left(148-149\right)^{2}\right)$$

Subtract 149 from 152 to get 3.

$$\frac{1}{8}\left(38+3^{2}+\left(148-149\right)^{2}\right)$$

Calculate 3 to the power of 2 and get 9.

$$\frac{1}{8}\left(38+9+\left(148-149\right)^{2}\right)$$

Add 38 and 9 to get 47.

$$\frac{1}{8}\left(47+\left(148-149\right)^{2}\right)$$

Subtract 149 from 148 to get -1.

$$\frac{1}{8}\left(47+\left(-1\right)^{2}\right)$$

Calculate -1 to the power of 2 and get 1.

$$\frac{1}{8}\left(47+1\right)$$

Add 47 and 1 to get 48.

$$\frac{1}{8}\times 48$$

Multiply \frac{1}{8} and 48 to get 6.

$$6$$

Factor

$$2\times 3$$